AT91SAM7A3 datasheet(2/39 Pages) ATMEL

2 / 39 page

6042DS–ATARM–14-Dec-06

AT91SAM7A3

• Nineteen Peripheral DMA Controller (PDC) Channels

• Two CAN 2.0B Active Controllers, Supporting 11-bit Standard and 29-bit Extended Identifiers

– 16 Fully Programmable Message Object Mailboxes, 16-bit Time Stamp Counter

• Two 8-channel 10-bit Analog-to-Digital Converter

• Three Universal Synchronous/Asynchronous Receiver Transmitters (USART)

– Individual Baud Rate Generator, IrDA® Infrared Modulation/Demodulation

– Support for ISO7816 T0/T1 Smart Card, Hardware Handshaking, RS485 Support

• Two Master/Slave Serial Peripheral Interfaces (SPI)

– 8- to 16-bit Programmable Data Length, Four External Peripheral Chip Selects

• Three 3-channel 16-bit Timer/Counters (TC)

– Three External Clock Inputs, Two Multi-purpose I/O Pins per Channel

– Double PWM Generation, Capture/Waveform Mode, Up/Down Capability

• Two Synchronous Serial Controllers (SSC)

– Independent Clock and Frame Sync Signals for Each Receiver and Transmitter

– I²S Analog Interface Support, Time Division Multiplex Support

– High-speed Continuous Data Stream Capabilities with 32-bit Data Transfer

• One Two-wire Interface (TWI)

– Master Mode Support Only, All Two-wire Atmel EEPROM’s Supported

• Multimedia Card Interface (MCI)

– Compliant with Multimedia Cards and SD Cards

– Automatic Protocol Control and Fast Automatic Data Transfers with PDC, MMC and SDCard Compliant

• IEEE® 1149.1 JTAG Boundary Scan on All Digital Pins

• Required Power Supplies

– Embedded 1.8V Regulator, Drawing up to 130 mA for the Core and the External Components, Enables 3.3V Single Supply

Mode

– 3.3V VDD3V3 Regulator, I/O Lines and Flash Power Supply

– 1.8V VDD1V8 Output of the Voltage Regulator and Core Power Supply

– 3V to 3.6V VDDANA ADC Power Supply

– 3V to 3.6V VDDBU Backup Power Supply

• 5V-tolerant I/Os

• Fully Static Operation: Up to 60 MHz at 1.65V and 85°C Worst Case Conditions

• Available in a 100-lead LQFP Green Package

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